<?php

class EmployeeController extends Controller {
	/**
	 * @return array action filters
	 */
	public function filters() {
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules() {
		return array(
			array(
				'allow',
				// allow authenticated user to perform 'create' and 'update' actions
				'actions' => array(
					'index',
					'view',
				),
				'roles' => array(
					'employeeView'
				),
			),
			array(
				'allow',
				// allow admin user to perform 'admin' and 'delete' actions
				'actions' => array(
					'admin',
					'delete',
					'create',
					'update',
					'assignTag',
					'deleteTag'
				),
				'roles' => array(
					'employeeManage'
				),
			),
			array(
				'deny',
				// deny all users
				'users' => array(
					'*'
				),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id) {
		$this->render('view', array(
				'model' => $this->loadModel($id),
			));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate() {
		$model = new Employee;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if (isset($_POST['Employee'])) {
			$model->attributes = $_POST['Employee'];
			if ($model->save())
				$this->redirect(array(
						'view',
						'id' => $model->id
					));
		}

		$this->render('create', array(
				'model' => $model,
			));
	}
	public function actionAssignTag($employeeId) {
		if (isset($_POST['EmployeeTag']) && !empty($_POST['EmployeeTag']['id'])) {
			$tagId = $_POST['EmployeeTag']['id'];
			$relationExist = EmployeeTagEmployee::model()
				->findByAttributes(
					array(
						'employeeId' => $employeeId,
						'tagId' => $tagId
					));
			if (!$relationExist) {
				$relation = new EmployeeTagEmployee();
				$relation->employeeId = $employeeId;
				$relation->tagId = $tagId;
				$relation->save();
			}

			$this->redirect(array(
					'view',
					'id' => $employeeId
				));
		}
		throw new CHttpException(401);
	}
	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id) {
		$model = $this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if (isset($_POST['Employee'])) {
			$model->attributes = $_POST['Employee'];
			if ($model->save())
				$this->redirect(array(
						'view',
						'id' => $model->id
					));
		}

		$this->render('update', array(
				'model' => $model,
			));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id) {
		if (Yii::app()->request->isPostRequest) {
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if (!isset($_GET['ajax']))
				$this
					->redirect(
						isset($_POST['returnUrl']) ? $_POST['returnUrl']
							: array(
								'admin'
							));
		} else
			throw new CHttpException(400,
				'Invalid request. Please do not repeat this request again.');
	}

	public function actionDeleteTag($employeeId, $tagId) {
		if (Yii::app()->request->isPostRequest) {
			// we only allow deletion via POST request
			$tagEmployee = EmployeeTagEmployee::model()
				->findByAttributes(
					array(
						'employeeId' => $employeeId,
						'tagId' => $tagId
					));
			$tagEmployee->delete();
			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if (!isset($_GET['ajax']))
				$this
					->redirect(
						isset($_POST['returnUrl']) ? $_POST['returnUrl']
							: array(
								'view',
								'id' => $employeeId,
							));
		} else
			throw new CHttpException(400,
				'Invalid request. Please do not repeat this request again.');
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex() {
		$searchModel = new EmployeeSearch();
		$searchModel->unsetAttributes(); // clear any default values
		if (isset($_GET['EmployeeSearch']))
			$searchModel->attributes = $_GET['EmployeeSearch'];
		$model = clone Employee::model();
		$model->getDbCriteria()->mergeWith($searchModel->createCriteria());
		$dataProvider = new CActiveDataProvider($model);
		$this
			->render('index',
				array(
					'dataProvider' => $dataProvider,
					'searchModel' => $searchModel,
				));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin() {
		$model = new Employee('search');
		$model->unsetAttributes(); // clear any default values
		if (isset($_GET['Employee']))
			$model->attributes = $_GET['Employee'];

		$this->render('admin', array(
				'model' => $model,
			));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id) {
		$model = Employee::model()->findByPk($id);
		if ($model === null)
			throw new CHttpException(404, 'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model) {
		if (isset($_POST['ajax']) && $_POST['ajax'] === 'employee-form') {
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}

	protected function getUnAssignedUsers() {
		$model = User::model();
		$criteria = new CDbCriteria();
		$criteria->join = 'LEFT JOIN {{employee}} ON ' . $model->getTableAlias() . '.id=userId';
		$criteria->addInCondition('userId', array(
				null
			));
		return $model->findAll($criteria);
	}
}
